Lixada Wireless Digital Fishing LED Alarm Alert Set 4 Fishing Bite Alarm + 1 Receiver with LCD Screen Indicator + 4 Stainless Steel Chain Hanger Illuminated Swinger in Case Carp Fishing Features of bite alarm: LED alarming signals with high output speaker. High visibility LED latching about 40 second memory. Adjustable sensitivity, volume, tone button. 256 variable code to prevent interference from another angler. Extra jack for illuminated swinger. Special rubber finished surface. Features of receiver: Design with antenna. Operating range more than 100m. Screen to indicate number of bite alarm. On / off, sound, vibration button. Output speaker. Automatically paired. Features of swinger: 4 LED illuminated swinger with different light colors. Stainless steel material. When the fish comes to your hook, it will give you signal. Bite alarm size: 9 * 5 * 4.5cm / 3.5 * 2.0 * 1.8in Receiver size: 17.5 * 6.2 * 3.9cm / 6.9 * 2.4 * 1.5in